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 0000009346-19-000098-index-headers.html | 2019-11-06 17:28:21 | |
| 0000009346-19-000098-index.html | 2019-11-06 17:28:21 | |
| 0000009346-19-000098.txt | 2019-11-06 17:28:21 | |
 0000009346-19-000098-xbrl.zip | 183430 | 2019-11-06 17:28:21 |
| exhibit101.htm | 10018 | 2019-11-06 17:28:21 |
| exhibit102.htm | 84089 | 2019-11-06 17:28:21 |
| exhibit311.htm | 12920 | 2019-11-06 17:28:21 |
| exhibit312.htm | 12856 | 2019-11-06 17:28:21 |
| exhibit32.htm | 5675 | 2019-11-06 17:28:21 |
| FilingSummary.xml | 27073 | 2019-11-06 17:28:21 |
| Financial_Report.xlsx | 64896 | 2019-11-06 17:28:21 |
| form10q.htm | 1313803 | 2019-11-06 17:28:21 |
 image1.jpg | 8225 | 2019-11-06 17:28:21 |
| ptvc-20190930.xml | 1614548 | 2019-11-06 17:28:21 |
| ptvc-20190930.xsd | 42032 | 2019-11-06 17:28:21 |
| ptvc-20190930_cal.xml | 88066 | 2019-11-06 17:28:21 |
| ptvc-20190930_def.xml | 216248 | 2019-11-06 17:28:21 |
| ptvc-20190930_lab.xml | 636431 | 2019-11-06 17:28:21 |
| ptvc-20190930_pre.xml | 344433 | 2019-11-06 17:28:21 |
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| R9.htm | 166849 | 2019-11-06 17:28:21 |
| report.css | 2767 | 2019-11-06 17:28:21 |
| Show.js | 1085 | 2019-11-06 17:28:21 |